HK1065899A1 - Method and apparatus for setting pilot signal transmit powers - Google Patents

Method and apparatus for setting pilot signal transmit powers

Info

Publication number
HK1065899A1
HK1065899A1 HK04108594A HK04108594A HK1065899A1 HK 1065899 A1 HK1065899 A1 HK 1065899A1 HK 04108594 A HK04108594 A HK 04108594A HK 04108594 A HK04108594 A HK 04108594A HK 1065899 A1 HK1065899 A1 HK 1065899A1
Authority
HK
Hong Kong
Prior art keywords
pilot signal
cell
cells
subscriber unit
signal transmit
Prior art date
Application number
HK04108594A
Inventor
Matthew James Dillon
Simon Brusch
Chris Murphy
Jonathan Neil Hopkinson
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of HK1065899A1 publication Critical patent/HK1065899A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

Abstract

The invention relates to a method and apparatus for setting pilot signal transit powers in a CDMA system. Subscriber units ( 211,213,215 ) perform pilot signal measurement measurements and transmits these to a receiver ( 603 ). A processor ( 605 ) determines a ranking factor for each cell ( 217, 219,221 ) at least partly dependent on the pilot signal measurement and a cell overlap condition of the subscriber unit ( 211, 213, 215 ) during measurements. The processor ( 605 ) ranks the cells ( 217,219,221 ) according to the ranking factor, and sets the pilot signal transmit power of at least one cell in response to the ranking of the cells by adjusting a power amplifier ( 609 ). The cell overlap condition is determined as the handover state of the subscriber unit ( 211,213,215 ) or as the number of cells, which can be received by the subscriber unit ( 211,213,215 ) during the measurement The invention is applicable to 3rd generation cellular communication systems.
HK04108594A 2001-05-04 2004-11-01 Method and apparatus for setting pilot signal transmit powers HK1065899A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0111001A GB2375266B (en) 2001-05-04 2001-05-04 Method and apparatus for setting pilot signal transmit powers
PCT/EP2002/002143 WO2002091621A1 (en) 2001-05-04 2002-02-25 Method and apparatus for setting pilot signal transmit powers

Publications (1)

Publication Number Publication Date
HK1065899A1 true HK1065899A1 (en) 2005-03-04

Family

ID=9914067

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04108594A HK1065899A1 (en) 2001-05-04 2004-11-01 Method and apparatus for setting pilot signal transmit powers

Country Status (9)

Country Link
US (1) US7272409B2 (en)
EP (1) EP1388220B1 (en)
JP (1) JP4057920B2 (en)
CN (1) CN1312957C (en)
AT (1) ATE436167T1 (en)
DE (1) DE60232872D1 (en)
GB (1) GB2375266B (en)
HK (1) HK1065899A1 (en)
WO (1) WO2002091621A1 (en)

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US7493143B2 (en) * 2001-05-07 2009-02-17 Qualcomm Incorporated Method and system for utilizing polarization reuse in wireless communications
KR101055730B1 (en) * 2004-08-11 2011-08-11 엘지전자 주식회사 Uplink transmit power scheduling method
US7379446B2 (en) * 2004-10-14 2008-05-27 Qualcomm Incorporated Enhanced beacon signaling method and apparatus
US7715845B2 (en) 2004-10-14 2010-05-11 Qualcomm Incorporated Tone hopping methods and apparatus
US8036665B2 (en) * 2004-10-28 2011-10-11 At&T Mobility Ii Llc Wireless mobile station call handoff
JP4507909B2 (en) * 2005-02-21 2010-07-21 株式会社日立製作所 Base station apparatus and control method for adaptively controlling channel density
GB2424542B (en) * 2005-03-22 2008-12-24 Motorola Inc Apparatus and method for optimising a spread spectrum cellular communication system
US7839814B2 (en) * 2005-06-23 2010-11-23 Motorola Mobility, Inc. Method and system for adjusting inter-scan period of a mobile station
JP5321466B2 (en) * 2007-10-09 2013-10-23 日本電気株式会社 RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION METHOD, BASE STATION, BASE STATION CONTROL METHOD, AND BASE STATION CONTROL PROGRAM
US8504091B2 (en) 2008-02-01 2013-08-06 Qualcomm Incorporated Interference mitigation for control channels in a wireless communication network
US8599705B2 (en) * 2008-02-01 2013-12-03 Qualcomm Incorporated Interference management based on enhanced pilot measurement reports
ES2360328B1 (en) 2009-04-23 2012-05-08 Vodafone España S.A.U TRANSMISSION OF THE PILOT CHANNEL IN A CELLULAR COMMUNICATION NETWORK.
WO2011102759A1 (en) 2010-02-16 2011-08-25 Telefonaktiebolaget L M Ericsson (Publ) A method for energy control in a cellular radio system
MX2012013881A (en) 2010-07-06 2013-01-24 Ericsson Telefon Ab L M Method and arrangement for reducing interference and enhancing coverage.
US8521158B2 (en) * 2010-11-30 2013-08-27 Motorola Solutions, Inc. Wireless communication device using a base station radiated effective transmit power for performing an automatic roaming
KR20130034444A (en) * 2011-09-28 2013-04-05 삼성전자주식회사 Appurus and method for determining gateway considering low power consumption
EP2795974A4 (en) * 2011-12-23 2015-07-29 Ericsson Telefon Ab L M Method and radio network node for ranking cells in a cellular network
EP2987292B1 (en) * 2013-04-18 2019-06-19 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving signal by using multiple modulation and coding schemes in wireless communication system
CN105379380A (en) * 2013-05-08 2016-03-02 Zte维创通讯公司 Using a geometry indicator in hetnet deployments
WO2020028600A1 (en) * 2018-07-31 2020-02-06 Parallel Wireless, Inc. Distributed multi-hng son

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6157668A (en) * 1993-10-28 2000-12-05 Qualcomm Inc. Method and apparatus for reducing the average transmit power of a base station
EP0856955A3 (en) * 1997-01-29 2000-09-06 YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd. CDMA power control system
US5987326A (en) * 1997-02-11 1999-11-16 Qualcomm Incorporated Transmit power reduction for a high speed CDMA link in soft handoff
GB2337414A (en) * 1998-05-14 1999-11-17 Fujitsu Ltd Soft handoff in cellular communications networks
KR100277058B1 (en) * 1998-06-15 2001-01-15 윤종용 A method for deciding the starting time of inter-frequency hard handoff and a method for initiating of hard handoff in mobile telecommunication system
US6167282A (en) 1998-06-18 2000-12-26 Motorola, Inc. Method and apparatus for updating site ranking factors in a wireless communication system
US6285664B1 (en) * 1998-09-08 2001-09-04 Lucent Technologies, Inc. Method and apparatus for estimating pilot coverages
US6963750B1 (en) * 1998-09-30 2005-11-08 Lucent Technologies Inc. CDMA power control for paging and initial traffic channel power
SE516837C2 (en) * 1998-12-18 2002-03-12 Ericsson Telefon Ab L M Method and means for determining handovers in a cellular radio communication system

Also Published As

Publication number Publication date
GB0111001D0 (en) 2001-06-27
GB2375266A (en) 2002-11-06
EP1388220A1 (en) 2004-02-11
EP1388220B1 (en) 2009-07-08
WO2002091621A1 (en) 2002-11-14
ATE436167T1 (en) 2009-07-15
US20040198408A1 (en) 2004-10-07
GB2375266B (en) 2007-05-30
JP4057920B2 (en) 2008-03-05
US7272409B2 (en) 2007-09-18
DE60232872D1 (en) 2009-08-20
JP2005515648A (en) 2005-05-26
CN1312957C (en) 2007-04-25
CN1520648A (en) 2004-08-11

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20200221